debug("<img src=\"unnamed_chunk_1snapshot.png\" alt=\"unnamed_chunk_1snapshot\" width=505/><br> Your browser does not support WebGL. See <a href=\"http://get.webgl.org\">http://get.webgl.org</a>");

return;

}

var gl;

try {

// Try to grab the standard context. If it fails, fallback to experimental.

gl =canvas.getContext("webgl")

||canvas.getContext("experimental-webgl");

}

catch(e) {}

if ( !gl ) {

debug("<img src=\"unnamed_chunk_1snapshot.png\" alt=\"unnamed_chunk_1snapshot\" width=505/><br> Your browser appears to support WebGL, but did not create a WebGL context. See <a href=\"http://get.webgl.org\">http://get.webgl.org</a>");